/*
 * Copyright (c) 2007 Team and Concepts Limited.
 * All rights reserved.
 *
 * Redistribution and use in source and binary forms, with or without
 * modification, are permitted provided that the following conditions are met:
 *     * Redistributions of source code must retain the above copyright
 *       notice, this list of conditions and the following disclaimer.
 *     * Redistributions in binary form must reproduce the above copyright
 *       notice, this list of conditions and the following disclaimer in the
 *       documentation and/or other materials provided with the distribution.
 *     * Neither the name of the Team and Concepts Limited nor the
 *       names of its contributors may be used to endorse or promote products
 *       derived from this software without specific prior written permission.
 *
 * THIS SOFTWARE IS PROVIDED BY TEAM AND CONCEPTS LIMITED ``AS IS'' AND ANY
 * EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
 * WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
 * DISCLAIMED. IN NO EVENT SHALL TEAM AND CONCEPTS LIMITED BE LIABLE FOR ANY
 * DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
 * (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
 * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
 * ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
 * SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
 */

using System;
using System.Collections.Generic;
using System.Text;
using System.Net;
using System.Security.Authentication;
using System.IO;
using System.Web;
using EditGrid.API.Client;

namespace EditGrid.API.Client
{
    public class Authentication
    {
        public static string GetToken(Uri baseUri, string appId)
        {
            EditGridHttpRequest req = new EditGridHttpRequest("GET", new Uri(baseUri, "auth/get-token"), appId);
            EditGridHttpResponse res = req.GetResponse();
            if (res.StatusCode == HttpStatusCode.OK)
            {
                return res.ResponseText;
            }
            else
            {
                throw new EditGridServiceException(res.ResponseText);
            }
        }

        public static string GetToken(Uri baseUri, string appId, string authKey)
        {
            EditGridHttpRequest req = new EditGridHttpRequest("POST", new Uri(baseUri, "auth/get-token"), appId);
            req.ContentType = "application/x-www-form-urlencoded";
            req.SetRequestBody("auth=" + HttpUtility.UrlEncode(authKey));
            EditGridHttpResponse res = req.GetResponse();
            if (res.StatusCode == HttpStatusCode.OK)
            {
                return res.ResponseText;
            }
            else
            {
                throw new EditGridServiceException(res.ResponseText);
            }
        }

        public static string GetToken(Uri baseUri, string appId, string login, string password)
        {
            EditGridHttpRequest req = new EditGridHttpRequest("POST", new Uri(baseUri, "auth/get-token"), appId);
            req.ContentType = "application/x-www-form-urlencoded";
            req.SetRequestBody("login=" + login +
                "&password=" + HttpUtility.UrlEncode(password));
            EditGridHttpResponse res = req.GetResponse();
            if (res.StatusCode == HttpStatusCode.OK)
            {
                return res.ResponseText;
            }
            else
            {
                throw new EditGridServiceException(res.ResponseText);
            }
        }

        public static string GetAuthKey(Uri baseUri, string appId, string login, string password)
        {
            EditGridHttpRequest req = new EditGridHttpRequest("POST", new Uri(baseUri, "auth/get-auth-key"), appId);
            req.ContentType = "application/x-www-form-urlencoded";
            req.SetRequestBody("login=" + login +
                "&password=" + HttpUtility.UrlEncode(password));
            EditGridHttpResponse res = req.GetResponse();
            if (res.StatusCode == HttpStatusCode.OK)
            {
                return res.ResponseText;
            }
            else
            {
                throw new EditGridServiceException(res.ResponseText);
            }
        }

        public static string GetToken(Uri baseUri, string appId, string organisation, string login, string password)
        {
            return Authentication.GetToken(baseUri, appId, organisation + "/" + login, password);
        }

        public static void RevokeToken(Uri baseUri, string appId, string apiToken)
        {
            EditGridHttpRequest req = new EditGridHttpRequest("GET", new Uri(baseUri, "auth/revoke-token"), appId);
            req.GetResponse().Close();
        }
    }
}
